BLOCK DIAGRAM

The input/output system relations are conveniently illustrated by the use of block diagrams, as in Fig. 3.2. Figure 3.2a is the overall system diagram showing inputs f1 and /2 and output e and Fig. 3.26 is the combined block diagram of the subsystems, showing the sort of interconnections and feed­backs that are typically encountered in real systems.

BLOCK DIAGRAM

(b)

Fig. 3.2 Block diagram, (a) Complete system. (6) Detailed block diagram. = spring forces, d = damper force. ri = reaction forces.